These companies manufacture oscillators, frequency sources, and frequency synthesizers.
Oscillators come in many varieties with many different frequency determining devices.
Everything from low-tech LC (inductor-capacitor) tank circuits to crystals and YIG type
oscillators are used. High and low accuracy and stability, frequency ranges, fixed frequency
and variable frequency, are among the available options. If you are looking for
test equipment that performs these functions,
please click this link.

Bliley Technologies
| 814-838-3571 | Erie, PAPrecision crystal resonators and oscillators with product
selection tools for quartz crystal and crystal oscillator, product family overviews,
and engineering drawings available for online-viewing, or downloading in the popular
".PDF" format.

EM Research
| 775-345-2411 | Reno, NVManufactures the most complete lineup of high-performance
standard and custom-designed signal sources in the microwave industry. We specialize
in surface-mount and modular Phase-Locked Oscillators (PLO) and Frequency Synthesizers
(PLL) from 4 MHz to over 30 GHz for commercial and military systems.

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas
and reference material while performing my work as an RF system and circuit design engineer.
The Internet was still largely an unknown entity at the time and not much was available
in the form of WYSIWYG
...

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